{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-52853 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-52853 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-52853 is a medium-severity vulnerability in docmost, published on 24 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-52853 and fix it if it is affected.\n\nWhat it is: CVE-2026-52853 is a medium-severity vulnerability in docmost, published on 24 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-52853 in the wild and no public exploit code.\n\nAffected product: docmost. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-52853/ (Markdown: https://insights.sbomify.com/CVE-2026-52853/index.md)","id":"CVE-2026-52853","markdown":"https://insights.sbomify.com/CVE-2026-52853/index.md","name":"CVE-2026-52853","record":{"aliases":["GHSA-84fx-mvqx-p5gx"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Docmost wiki software","requires_auth":"high_privilege","summary":"An authenticated workspace admin can invite users with owner privileges, enabling privilege escalation and backdoor account creation in Docmost.","user_interaction":"required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.2,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-269","name":"Improper Privilege Management"}],"description":"Docmost is open-source collaborative wiki and documentation software. Prior to 0.90.1, an authenticated workspace ADMIN can use the workspace invitation flow to invite an external email address with the OWNER role because the role ceiling does not prevent ADMIN users from granting privileges above their own. When the invitation is accepted, the new account receives OWNER-level permissions, allowing the ADMIN to create a backdoor OWNER account or promote a colluding external user to the workspace's highest privilege level. This issue is fixed in version 0.90.1.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Docmost: Privilege Escalation - ADMIN Can Invite Users as OWNER","id":"CVE-2026-52853","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"mediawiki/maps: Stored XSS through the overlays parameter in the display_map parser function","id":"CVE-2026-52854"},"packages":[],"prev":{"headline":"Traccar: Uncontrolled Infinite Loop DoS via Group Parent Cycle","id":"CVE-2026-52852"},"products":["docmost"],"published":"2026-09-24","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-05","vendors":["docmost"]},"summary":"An authenticated workspace admin can invite users with owner privileges, enabling privilege escalation and backdoor account creation in Docmost.","url":"https://insights.sbomify.com/CVE-2026-52853/"}